@article{oai:mdu.repo.nii.ac.jp:00000870,
 author = {金子, 明美 and 川端, 宏之 and 林, 于昉 and 宮沢, 裕夫},
 issue = {2},
 journal = {松本歯学},
 month = {Aug},
 note = {application/pdf, Toothbrushing to physically remove plaque is one of the most commonly recommended and reliable means to achieve good oral hygiene. However, good brushing skills are needed particularly for the newly erupted first permanent molars because the anatomical structures and eruption processes of the first permanent molars are very complicated. In the study, thirty children aged 5-9 years participated, and OHI (oral hygiene index) for each child was assessed before and after by using two types of powered toothbrushes (arcuate and vibratory motions) and a regular manual toothbrush in removing supragingival plaque from the first permanent molars. Results were as follows: 1) In all surfaces of the maxillary and mandibular first permanent molars, the effects of the powered toothbrushes in removing supragingival plaque were found to be better than the manual toothbrush. 2) On right side of first permanent molars, a significant difference was found among arcuate powered toothbrush, vibratory powered toothbrush and the manual toothbrush. On the contrary, on the left side of first permanent molars, a significant difference was only found between the arcuate and the manual toothbrush. 3) In all different eruption stages of the first permanent molar, the effects of powered toothbrushes in removing supragingival plaque were found to be better than the manual toothbrush.},
 pages = {178--189},
 title = {幼若永久歯の口腔清掃に関する研究 : 第2報 第1大臼歯のプラーク除去効果について},
 volume = {21},
 year = {1995}
}